Database Triggers for Data Integrity: Enforcing Department IDs and Job Hierarchies

How to Process Semi-Structured Data Using SQL Server's T-SQL and Window Functions

Creating a Single Result Set with Dynamic Column Creation: A Comprehensive Guide to Handling Multiple Requests in SQL Server

Creating Combination Groups in SQL Server: A Comprehensive Guide

Understanding SQL Queries and Percentage Calculations: Avoiding Common Pitfalls for Accurate Results

Solving SQL Query Issues with Window Functions: A Case Study on Accurate Output Determination

SQL Server 2019 Random Number per Group: A Customized Solution Using Window Functions and Calculations

Mastering Subqueries and Correlated Queries: A SQL Guide for Efficient Data Retrieval

Converting and Calculating Lost Time in SQL: Best Practices and Alternative Solutions.

A Deep Dive into Gaps and Islands: Calculating Consecutive Days for User Activity